Borussia Dortmund chief executive Hans-Joachim Watzke admits they have good ties with Manchester United and Arsenal.

Watzke made the revelation when discussing the lack of a relationship with Chelsea.

He told the London Evening Standard: "Now we have connections with Manchester United because we made the transfer over Shinji Kagawa [last summer], we also have good relation with Arsenal and Ivan Gazidis. However, Chelsea for us is a dark hole because no one knows who says yes or no."